Breast Cancer: Vitamin D destroys cancer cells in laboratory
Vitamin D is effective in killing cancer cells, breast cancer, colon and prostate cancer in lab tests on mice and achieved by the team of researcher Joellen Welch, the State University New York at Albany, who was interviewed by Good Morning America.

Part of her work involves subjecting cells of breast cancer and treated with a potent form of vitamin D.
Within days, half of cancer cells shrink and die. Vitamin D enters the cell and triggers a process of death of the latter. “It’s similar to what we see when we treat cells with tamoxifen, a drug used to treat breast cancer,” said Welch.
The research team also tested the effectiveness of vitamin D to destroy cancer tumors in mice. Within weeks, the tumors decreased by 50% on average. Some disappeared. Similar results have been achieved for tumors of the colon cancer and prostate cancer.